How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com
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iMac Upgrade Guide for Intel iMacs
imac 2010 21.5" i7 max ram? | MacRumors Forums
How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac
RAM upgrade considerations for iMac systems - CNET
How To Upgrade RAM in a Mac | Macworld
How to Upgrade Memory in a 21.5-inch or 27-inch iMac (Mid 2010) - YouTube
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